Well, I am a bit odd - I usually use 'The Works' 'Craftworkz' A4 140 gsm cheap white card (30 sheets for 99p) (I have bought others in bulk), and then print onto cheapo Tesco 75 gsm A4 copier paper (500 sheets for £2.50), altering print settings, to taste, then stick that on the card.
Printing, directly, onto the card, is as good and quicker Just tried with a camo tank
Here is a picture of that part of my bench, at the mo, so you can see what I get ...
Got to ask yourself about cost:time:usage balances
You will find thinner is kinder for smaller pieces The more you build, the more you will get used to the thickness you use.
Most use plain cardstock and it works fine... if you want something that looks a bit better with more vibrant colors and sharper detail, try matte photo paper. The matte photo paper does cost a bit more though. Sometimes you can catch a sale in the office supply stores.
My printer is HP deskjet F2280. Great printer (I had lexmark, Epson and canon in the past), with easy to find and cheap compatible supplies. I'm not used to paper models, but used to print and play rules book (with comb binding machine at home), and my printer give me almost laser quality for text, even in standard settings. I printed Mech Attack this way (I'm waiting a new color cartdridge to make the cover). I print big rulebooks in draft quality, and it's still really good too.
Concerning paper, I found a solution I guess. A few months ago I bought some A4 sticker sheets. I'll print the mechs on these and stick the sheets on any cardboard I find at home, so the extra price will be 0euros
I will probably buy a cheap mat photo paper packet to see how good it is compared thought.
I'll show you results as soon as I'll recieve the new printer supplies.
The price (about 10USD) is cheaper than photo paper, there is plenty of paper to make mistakes (125 sheets), it's especially made (following the product description) for color printing, and the weight seems pretty good (250grams, it's superior to the usual expensive Bristol cardstock I'm using, 205grams).
I'll also buy some clear laminating sticker roll, to protect counters and record sheets.
I prefer to use matte photo paper, and I always by the office supply store generic brand. Some brands are not double-sided, but I'm pretty sure the Staples, Office Max, and Office Depot photo papers are. Double-sided isn't really that important for print quality, but it keeps you from needing to pay attention to how you load the paper in your printer.
Any gamers in Lancaster County, Pennsylvania, USA?